计算物理 ›› 1994, Vol. 11 ›› Issue (1): 119-122.

• 论文 • 上一篇    下一篇

二维波动方程数值反演的选代方法

丛文相   

  1. 黑龙江大学数学系, 哈尔滨 150080
  • 收稿日期:1992-08-24 修回日期:1993-01-22 出版日期:1994-03-25 发布日期:1994-03-25

A NUMERICAL ITERATIVE METHOD FOR THE INVERSE PROBLEM OF 2-D WAVE EQUATION

Cong Wenxiang   

  1. Department of mathematics, Heilongjiang University, Harerbin, 150080
  • Received:1992-08-24 Revised:1993-01-22 Online:1994-03-25 Published:1994-03-25

摘要: 本文针对二维波动方程的反演问题,提出了一种新的迭代方法。该方法是一种牛顿型选代,并且每步迭代都利用古洪诺夫正则化方法克服反问题的不适定性,因此具有良好的数值稳定性。文中给出了数值仿真实例说明了本方法的可行性及有效性。

关键词: 波动方程, 数值反演, 正则化方法

Abstract: A new iterative method is proposed for the inverse problem of 2-D acoustic equation. As a kind of Newton-type iteration, the method overcomes the ill-posed of inverse problem by Tikhonov's regularization method in each iterative step and has a good numerical stability.The Numerical results show that this method is feasible and effective.

Key words: wave equation, numerical inverse problem, regularization method